---
id: CVE-2020-1752
title: >-
  A use-after-free vulnerability introduced in glibc upstream version 2.14 was
  found in the way the tilde expansion was carried out
summary: >-
  A use-after-free vulnerability introduced in glibc upstream version 2.14 was
  found in the way the tilde expansion was carried out. Directory paths
  containing an initial tilde followed by a valid username were affected by this
  issue. A lo…
severity: high
cvss: 7
cvssVector: 'CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H'
cwe:
  - CWE-416
  - CWE-416
vendor: gnu
product: glibc
affected:
  - glibc < 2.32.0
  - ubuntu_linux = 16.04
  - ubuntu_linux = 18.04
  - ubuntu_linux = 19.10
  - active_iq_unified_manager >= 9.5
  - hci_management_node
  - solidfire
  - steelstore_cloud_integrated_storage
  - h410c_firmware
  - debian_linux = 10.0
patched:
  - glibc 2.32.0
published: '2020-04-30'
updated: '2026-10-14'
sourceUpdated: '2026-10-14T09:17:18.887'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2020-1752'
references:
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-1752'
    label: secalert@redhat.com
  - url: >-
      https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.apache.org%3E
    label: secalert@redhat.com
  - url: >-
      https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.apache.org%3E
    label: secalert@redhat.com
  - url: 'https://lists.debian.org/debian-lts-announce/2022/10/msg00021.html'
    label: secalert@redhat.com
  - url: 'https://security.gentoo.org/glsa/202101-20'
    label: secalert@redhat.com
  - url: 'https://security.netapp.com/advisory/ntap-20200511-0005/'
    label: secalert@redhat.com
  - url: 'https://sourceware.org/bugzilla/show_bug.cgi?id=25414'
    label: secalert@redhat.com
  - url: >-
      https://sourceware.org/git/gitweb.cgi?p=glibc.git%3Bh=ddc650e9b3dc916eab417ce9f79e67337b05035c
    label: secalert@redhat.com
  - url: 'https://usn.ubuntu.com/4416-1/'
    label: secalert@redhat.com
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-1752'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: >-
      https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.apache.org%3E
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: >-
      https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.apache.org%3E
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://lists.debian.org/debian-lts-announce/2022/10/msg00021.html'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://security.gentoo.org/glsa/202101-20'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://security.netapp.com/advisory/ntap-20200511-0005/'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://sourceware.org/bugzilla/show_bug.cgi?id=25414'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: >-
      https://sourceware.org/git/gitweb.cgi?p=glibc.git%3Bh=ddc650e9b3dc916eab417ce9f79e67337b05035c
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://usn.ubuntu.com/4416-1/'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://cert-portal.siemens.com/productcert/html/ssa-398330.html'
    label: 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e
  - url: 'https://cert-portal.siemens.com/productcert/html/ssa-831302.html'
    label: 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e
tags:
  - nvd
epss: 0.00535
epssPercentile: 0.43581
ingestedAt: '2026-10-14T09:24:26.055Z'
---

## Overview

A use-after-free vulnerability introduced in glibc upstream version 2.14 was found in the way the tilde expansion was carried out. Directory paths containing an initial tilde followed by a valid username were affected by this issue. A local attacker could exploit this flaw by creating a specially crafted path that, when processed by the glob function, would potentially lead to arbitrary code execution. This was fixed in version 2.32.

## Affected

- `glibc < 2.32.0`
- `ubuntu_linux = 16.04`
- `ubuntu_linux = 18.04`
- `ubuntu_linux = 19.10`
- `active_iq_unified_manager >= 9.5`
- `hci_management_node`
- `solidfire`
- `steelstore_cloud_integrated_storage`
- `h410c_firmware`
- `debian_linux = 10.0`

## Remediation

Upgrade past the affected range:

- `glibc 2.32.0`